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John R. Ninosky

100 Corporate Center Drive
Suite 201
Camp Hill, PA 17011
(717) 651-3709
(717) 651-3707 - Fax

John is a member of the firm's Health Care Department. While he concentrates his practice in medical malpractice, he has extensive experience in handling general liability matters. John has successfully tried cases to verdict in all three of Pennsylvania's federal courts, and in 12 county courts of common pleas. He has also participated in various types of ADR activities, including arbitrations and mediations, throughout Pennsylvania. 

John graduated from the Dickinson School of Law where he was a member of the ATLA trial team. He was also an adjunct professor with the Advocacy Program. Prior to attending law school, John graduated summa cum laude from Indiana University of Pennsylvania. As an undergrad, he participated in varsity baseball and was named a three-time PSAC scholar athlete award winner. John remains active with IUP and currently serves as the president of the Alumni Association Board of Directors. He was the recipient of the Distinguished Alumni Award for Service in 2018. 

As an active member of the legal and civic communities, John is involved in various organizations. He is a member of the Dauphin and Cumberland County Bar associations, the Pennsylvania Defense Institute, the Defense Research Institute and the St. Thomas More Society. John is the former Mayor of Paxtang Borough and past president of the Paxtang Borough Council. He has coached youth sports through the Wilhem Paxtang Athletic Association and the St. Margaret Mary Athletic Association. 


  • Dickinson School of Law, Penn State University, Carlisle, PA (J.D., 1996)

  • Indiana University of Pennsylvania, Indiana, PA (B.A., 1993)

    Honors: summa cum laude

March 1, 2018
Experienced trial attorney John R. Ninosky has joined Marshall Dennehey Warner Coleman & Goggin's Harrisburg office as a shareholder in the firm's Health Care Department. Highly experienced in medical malpractice, civil rights and general liability matters, Mr. Ninosky has successfully tried...

Areas of Practice


  • Dickinson School of Law (J.D., 1996)
  • Indiana University of Pennsylvania (B.A., summa cum laude, 1993)

Bar Admissions

  • Pennsylvania, 1996
  • U.S. District Court Eastern District of Pennsylvania, 1997
  • U.S. District Court Middle District of Pennsylvania, 1997
  • U.S. Court of Appeals 3rd Circuit, 1997
  • U.S. District Court Western District of Pennsylvania, 2002
  • U.S. Supreme Court, 2002
  • West Virginia, 2013
  • U.S. District Court Southern District of West Virginia, 2013

Associations & Memberships

  • Cumberland County Bar Association
  • Dauphin County Bar Association
  • Defense Research Institute
  • Pennsylvania Defense Institute
  • St. Thomas More Society

Honors & Awards

Year Joined Organization: 2018

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